Archibald robertson



UNITED STATES PATENT OFFICE; j

I ARGHIBALD ROBERTSON, SEATTLE, WASHINGTON.

- To all whom it may concern; 7

Be it known that I, ARoI-IIBA D ROBERT- SON, a citizen of the United States, and resi-v dent of the city of Seattle, county of King, and State of Washington, have invented certain new and useful Improvements. in. Va-

' porizingPrimers, of which the following is a specification. i I My invention relates to 111138111511 combust on englnes and cons1sts of a devlce for supplying aqueous vaporto the charge for such engines and which also may be used as a means for primingthe engine s.

'. Theobject ofmy invention is to provide a simple device by-which a regular supply of aqueous vapor, heated to a considerable temperature, may be supplied in. an efiicient mannerto the charge for such engines, and at the same time, to have the device capable of being employed for the purpose .of supplying a small amount ofgasoleneto form priming charges for such, an engine.

The accompanying drawings show themvention embodied in constructions which illustrate the principle ofmy invention.

Figure 1 shows the cylindersof an engine I together with the intake manifold, and the manner of applying my -invention thereto.

' .Fig. 2 is, a-vertical section through the priming cup and, its connection with the manifold.

I E'g. 3"is a side view, partly'in section,

showing the same parts but of a different construction, the principle, however, being It has been found advantageousin the op,- eration of lnternal combustion engines to provide a certam amount of aqueous vapor tothe-charge of such engines. ,This is bene ficlal in increasing somewhat the power-dd;

veloped by the charge and also in maintain ing the cleanly condition of the cylinder and piston, and to prevent the deposit of carbon thereon.

. In accordance with my invention I provide means for introducing this aqueous vapor to the intake manifold 1. This is preferably introduced to the manifold at the point where it branches to reach the various cylinders. Fig. 2 shows a preferred construction of this part of the device. This employs a cup 2 which has a tubular neck 20 extending laterally therefrom and r beneath the cup. Thiscup is in communis APQnIzIN -PRIMER.

, Specification of Letters Patent.' l Patented06h14f1919; Application filed October 21, may Serial m 258,977. I i

cation with the conduit inthe tubular ex-v tension 20 by means of a hole 21 formed in the bottom of "the cup. I The neck 201 is preferably threaded and screws in a threaded hole in the wall of themanifold.

, I prefer to provide the cup 2 with a re cap .30. This is provided with a tip 40 which is fixedly secured thereto and which is; of a sizeand length tofsnugly fill the hole in the bottom of the cup. This tube is fixed in place sothat it may be easily withdrawn and. easily inserted. Using an extension 40 of smaller'diameter somewhat facilitates entering the tube so that its inner end enters and closes the openingat the bottom of the;cup. When it is in place it cuts .outcommunication between the chamberof'thecup Q'and the discharge'neckor tube 20.

7 he tube 4 extends from. the (mp2 to a point where its other end connects with the radiator 5, preferablyata point above the water level: therein, as for instance, with theflneck ofthe fillingopening 50. ,In its or otherwise brought infclose [connection with. theparts ofthe engine cylinders, so that it will become heated therefrom. The watery vapor which is given off by the Waterin theradiato will; b d awnzthr us tube/ 4* into the intake manifold 1, and will be highly heated by radiation from the engine cylinders.

vapor is discharged into the manifold, the same consisting of av perforated tube 6, which fits within the end of the tubular discharge stem 20, and which projects into the manifold. The perforations in this tip are I have provided a tip through which this.

thoroughly with the combustion This cap is also provided 'vided of a size to snugly fill thehole in the i intermediateparts, as 4 1, itis coiled about of aqueous vapor to thecharge' to cause smoother and better runnlng and also to prevent the deposit of carbon.

If at any time it becomes desirable tosup;- ply a few priming charges to the engine, this may readily be done by withdrawing the. tube 4. l/Vith this comes the tip 40 and the is'located between the cup and the discharge tip 6.

Iii Fig. 2 this consists of a set screw 7 which, when screwed in, closes the communieating channel. The cup 2 when thetube i is withdrawn, may be filled with gasolene. The quantity which it'holds willbe sufficient for a number of charges for the engine; Thisgasolene will be discharged through the tip 6 and will enrich the charge for a short time. Once the engine has been properlystarted, the tube t may be reinserted. As this may be very conveniently done the trouble required for priming the engine is very slight. V

The device as shown in Fig. 2 is a device made especially for this purpose. The device as shown in Fig. 3 is one made from stock'parts. It employs a nipple 8, asthe laterally extending stem, which is secured to the manifold, a set screw 70, which screws into the side of this nipple, an elbow 80,. and an ordinary oil cup 81.

What Iclaim as my invention is: i I 1. Avapor feed and priming'attachinent for internal combustion engines comprising a cup having a tubular discharge neck extending laterally from its bottom and adapted to be connected with the intake manifold of the engine, the cover of the cup and its bottom having alined holes, the one in its bottom constitutingthe connection withthe tubular discharge neck, and a vapor supply tube extending from the radiator above the water level and adapted to have one end removably inserted through the hole in the cover and to enter the hole in the bottom of thecup, to thereby permit the cup to be used as a priming cup when the vapor supply tube is removed.

2. A vapor feed and priming attachment for internal combustion engines comprising acu'p having a tubular discharge neck eX- tending laterally from its bottom and adapted to beconnected with the intake manifold of the engine, the cover of the cup and its bottom' havi'ngalined holes, the one in its bottom constituting the comiection with the tubular discharge neck, and a vapor supply tube extending from the radiator above the water level and adapted to have its other end removably inserted through the hole in said cover and intothe hole inthe bottom of the cup, whereby the cup may be used as a priming cu-p by removing said tube, and means for closing the tubular discharge neck between the cup and the manifold.

3. A vapor feed and priming attachment for internal combustion engines comprising a cup having a tubular discharge stem adapted to be connected with the intake manifold and connecting with the cup by a hole in the bottom thereof, a valve adapted to close said stem, acoverfor the cup having a hole alined with the hole in the bottom of the cup, and vapor supply tube adapted to be inserted through the hole in the cover and to enter the hole in the bottom of the cup.

4: A vapor feed'and priming attachment for internal conibustion'engines comprising a cup having a tubular discharge stem adapted; to be connected with the intake manifold and connecting with the cup by a hole in the bottom thereof, avalve' adapted to close said stem, a perforated tubular tip carried by said stem and adapted to project into the 1nanifold, a cover for the'cup having a'hole alined withthe hole in the bottom of the cup, and a vapor supply tube adapted to be inserted through the hole in the cover and to'enter the hole in the bottom of the cup.

Signed at Seattle, Washington, this 9th day of October, 1918.

ARCHIBALD ROBERTSON.

gytne Commissioner of Patents, 

